应用开发中一般都会将Dialog做成统一风格，基本上包含Title、Message、Button（单/双）三部分，大多数情况下都是对这三部分的不同组合，比如Message+Button（单/双）、Title+Button（单/双）、Message，个人针对这个需求做了个通用的工具类PopupDialog，方便使用，这里共享给有需要的童鞋：
预览图：
PopupDialog.java:
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.Resources;
import android.graphics.Point;
import android.os.Build;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import java.lang.reflect.Method;
/**
* Created by weishj on 2018/1/11.
*/
public class PopupDialog extends AlertDialog {
private static final String TAG = "PopupDialog";
private View view;
private Context context;
private TextView title;
private ImageView close;
private TextView msg;
private TextView confirm;
private TextView cancel;
private LinearLayout bottomLl;
private RelativeLayout topRl;
private View verticalLine;
private int width;
protected PopupDialog(Context context, boolean cancelable, boolean canceledOnTouchOutside) {
super(context, R.style.Dialog_Common);
this.context = context;
double deviceWidth = getScreenWidth(this.context);
width = (int) (deviceWidth * 0.7);
setCancelable(cancelable);
setCanceledOnTouchOutside(canceledOnTouchOutside);
LayoutInflater inflater = LayoutInflater.from(this.context);
view = inflater.inflate(R.layout.popup_dialog, null);
initView();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(width, LinearLayout.LayoutParams
.WRAP_CONTENT, 0);
setContentView(view, params);
}
public void setDialogTitle(CharSequence title, boolean closeBtn) {
if (title == null || "".equals(title)) {
if (this.title != null) {
this.title.setVisibility(View.GONE);
}
} else {
if (this.title != null) {
this.title.setText(title);
}
}
if (closeBtn && this.close != null) {
this.close.setVisibility(View.VISIBLE);
}
}
public void setDialogMessage(CharSequence msg) {
if (msg == null || "".equals(msg)) {
if (this.msg != null) {
this.msg.setVisibility(View.GONE);
}
} else {
if (this.msg != null) {
this.msg.setText(msg);
}
}
}
protected void setDialogButton(int whichButton, CharSequence text, final View.OnClickListener listener) {
if (text == null || "".equals(text)) {
switch (whichButton) {
case DialogInterface.BUTTON_POSITIVE: {
if (this.confirm != null) {
this.confirm.setVisibility(View.GONE);
}
break;
}
case DialogInterface.BUTTON_NEGATIVE: {
if (this.cancel != null) {
this.cancel.setVisibility(View.GONE);
}
break;
}
default: {
Log.e(TAG, "Button can not be found. whichButton=" + whichButton);
}
}
} else {
switch (whichButton) {
case DialogInterface.BUTTON_POSITIVE: {
if (this.confirm != null) {
this.confirm.setText(text);
this.confirm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (listener != null) {
listener.onClick(v);
}
dismiss();
}
});
}
break;
}
case DialogInterface.BUTTON_NEGATIVE: {
if (this.cancel != null) {
this.cancel.setText(text);
this.cancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (listener != null) {
listener.onClick(v);
}
dismiss();
}
});
}
break;
}
default: {
Log.e(TAG, "Button can not be found. whichButton=" + whichButton);
}
}
}
}
public void setDialogButton(String confirm, View.OnClickListener positiveClickListener, String cancel, View
.OnClickListener negativeClickListener) {
if ((confirm == null || "".equals(confirm)) && (cancel == null || "".equals(cancel))) {
if (this.bottomLl != null) {
this.bottomLl.setVisibility(View.GONE);
}
} else if ((confirm != null && !"".equals(confirm)) && (cancel != null && !"".equals(cancel))) {
setDialogButton(DialogInterface.BUTTON_POSITIVE, confirm, positiveClickListener);
setDialogButton(DialogInterface.BUTTON_NEGATIVE, cancel, negativeClickListener);
} else {
// Hide vertical line
this.verticalLine.setVisibility(View.GONE);
// Hide positive button
setDialogButton(DialogInterface.BUTTON_POSITIVE, null, null);
if (confirm == null || "".equals(confirm)) {
setDialogButton(DialogInterface.BUTTON_NEGATIVE, cancel, negativeClickListener);
} else {
// confirm is not null and cancel is null
setDialogButton(DialogInterface.BUTTON_NEGATIVE, confirm, positiveClickListener);
}
}
}
private void initView() {
this.title = (TextView) view.findViewById(R.id.common_dialog_title_tv);
this.close = (ImageView) view.findViewById(R.id.common_dialog_close_iv);
this.msg = (TextView) view.findViewById(R.id.common_dialog_message_tv);
// Set Scrollable
this.msg.setMovementMethod(ScrollingMovementMethod.getInstance());
this.confirm = (TextView) view.findViewById(R.id.common_dialog_confirm_tv);
this.cancel = (TextView) view.findViewById(R.id.common_dialog_cancel_tv);
this.bottomLl = (LinearLayout) view.findViewById(R.id.common_dialog_bottom_ll);
this.topRl = (RelativeLayout) view.findViewById(R.id.common_dialog_top_rl);
this.verticalLine = view.findViewById(R.id.common_dialog_vertical_line);
if (this.close != null) {
this.close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dismiss();
}
});
}
}
/**
* Obtain a confirm dialog instance
*
* @param context context
* @param title title of the dialog, pass null or "" if no title is needed
* @param message message to show
* @param confirm name of confirm button, pass null or "" if no confirm button is needed
* @param positiveClickListener click listener of confirm button
* @param cancel name of cancel button, pass null or "" if no confirm button is needed
* @param negativeClickListener click listener of cancel button
* @param cancelable cancelable when press back
* @param canceledOnTouchOutside canceled on touch outside
* @param closeBtn whether to show close button
*
* @return PopupDialog
*/
public static PopupDialog create(Context context, String title, String message, String confirm, View.OnClickListener
positiveClickListener, String cancel, View.OnClickListener negativeClickListener, boolean cancelable,
boolean canceledOnTouchOutside, boolean closeBtn) {
PopupDialog dialog = new PopupDialog(context, cancelable, canceledOnTouchOutside);
dialog.setDialogTitle(title, closeBtn);
dialog.setDialogMessage(message);
dialog.setDialogButton(confirm, positiveClickListener, cancel, negativeClickListener);
return dialog;
}
/**
* Obtain a confirm dialog instance
*
* @param context context
* @param titleRes resource id of the dialog's title, pass 0 if no title is needed
* @param messageRes resource id of the dialog's message, pass 0 if no title is needed
* @param confirmRes resource id of the dialog's confirm button, pass 0 if no title is needed
* @param positiveClickListener click listener of confirm button
* @param cancelRes resource id of the dialog's cancel button, pass 0 if no title is needed
* @param negativeClickListener click listener of cancel button
* @param cancelable cancelable when press back
* @param canceledOnTouchOutside canceled on touch outside
* @param closeBtn whether to show close button
*
* @return PopupDialog
*/
public static PopupDialog create(Context context, int titleRes, int messageRes, int confirmRes, View.OnClickListener
positiveClickListener, int cancelRes, View.OnClickListener negativeClickListener, boolean cancelable,
boolean canceledOnTouchOutside, boolean closeBtn) {
return create(context, titleRes, messageRes, confirmRes, positiveClickListener, cancelRes, negativeClickListener,
cancelable, canceledOnTouchOutside, closeBtn, null);
}
public static PopupDialog create(Context context, int titleRes, int messageRes, int confirmRes, View.OnClickListener
positiveClickListener, int cancelRes, View.OnClickListener negativeClickListener, boolean cancelable,
boolean canceledOnTouchOutside, boolean closeBtn, OnDismissListener listener) {
PopupDialog dialog = new PopupDialog(context, cancelable, canceledOnTouchOutside);
if (listener != null) {
dialog.setOnDismissListener(listener);
}
String title = null;
try {
title = titleRes > 0 ? context.getResources().getString(titleRes) : null;
} catch (Resources.NotFoundException e) {
Log.w(TAG, "Resource not found. resId=" + titleRes, e);
}
dialog.setDialogTitle(title, closeBtn);
String msg = null;
try {
msg = messageRes > 0 ? context.getResources().getString(messageRes) : null;
} catch (Resources.NotFoundException e) {
Log.w(TAG, "Resource not found. resId=" + messageRes, e);
}
dialog.setDialogMessage(msg);
String confirm = null;
String cancel = null;
try {
confirm = confirmRes > 0 ? context.getResources().getString(confirmRes) : null;
cancel = cancelRes > 0 ? context.getResources().getString(cancelRes) : null;
} catch (Resources.NotFoundException e) {
Log.w(TAG, "Resource not found.", e);
}
dialog.setDialogButton(confirm, positiveClickListener, cancel, negativeClickListener);
return dialog;
}
public void setCancel(int cancelRes) {
cancel.setText(context.getResources().getString(cancelRes));
}
private int getScreenWidth(Context context) {
return getScreenSize(context)[0];
}
private int getScreenHeight(Context context) {
return getScreenSize(context)[1];
}
private int[] getScreenSize(Context context) {
WindowManager windowManager;
try {
windowManager = (WindowManager)context.getSystemService("window");
} catch (Throwable var6) {
Log.w(TAG, var6);
windowManager = null;
}
if(windowManager == null) {
return new int[]{0, 0};
} else {
Display display = windowManager.getDefaultDisplay();
if(Build.VERSION.SDK_INT < 13) {
DisplayMetrics t1 = new DisplayMetrics();
display.getMetrics(t1);
return new int[]{t1.widthPixels, t1.heightPixels};
} else {
try {
Point t = new Point();
Method method = display.getClass().getMethod("getRealSize", new Class[]{Point.class});
method.setAccessible(true);
method.invoke(display, new Object[]{t});
return new int[]{t.x, t.y};
} catch (Throwable var5) {
Log.w(TAG, var5);
return new int[]{0, 0};
}
}
}
}
}styles.xml：
<!-- popup dialog -->
<style name="Dialog_Common" parent="@android:style/Theme.Dialog">
<!-- 边框 -->
<item name="android:windowFrame">@null</item>
<!-- 是否浮现在activity之上 -->
<item name="android:windowIsFloating">true</item>
<!-- 半透明 -->
<item name="android:windowIsTranslucent">false</item>
<!-- 无标题 -->
<item name="android:windowNoTitle">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<!-- 自己想要的背景 -->
<item name="android:background">@android:color/transparent</item>
<!-- 模糊 -->
<item name="android:backgroundDimEnabled">true</item>
</style>popup_dialog.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/popup_dialog_bg">
<RelativeLayout
android:id="@+id/common_dialog_top_rl"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:layout_marginBottom="24dp"
android:gravity="center_vertical">
<TextView
android:id="@+id/common_dialog_title_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_marginTop="20dp"
android:textSize="18dp"
android:textColor="#555555"
tools:text="标题"/>
<ImageView
android:id="@+id/common_dialog_close_iv"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_marginTop="15dp"
android:layout_alignParentRight="true"
android:src="@drawable/ic_popup_dialog_close"
android:visibility="gone"/>
</RelativeLayout>
<TextView
android:id="@+id/common_dialog_message_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginBottom="17dp"
android:maxLines="5"
android:minHeight="25dp"
android:textSize="14dp"
android:textColor="#555555"
tools:text="信息"/>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#F5F5F5"/>
<LinearLayout
android:id="@+id/common_dialog_bottom_ll"
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<TextView
android:id="@+id/common_dialog_cancel_tv"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:clickable="true"
android:textColor="#0679FE"
android:textSize="18dp"
tools:text="取消"/>
<View
android:id="@+id/common_dialog_vertical_line"
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="#F5F5F5"/>
<TextView
android:id="@+id/common_dialog_confirm_tv"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:clickable="true"
android:textColor="#0679FE"
android:textSize="18dp"
tools:text="确定"/>
</LinearLayout>
</LinearLayout>popup_dialog_bg.xml：
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners android:radius="8dp"/>
<solid android:color="#FFFFFF"/>
<stroke
android:width="1px"
android:color="#2E000000"/>
</shape>ic_popup_dialog_close.png：
使用方法：
PopupDialog.create(...).show();